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feat(protocan): открой разбор ID и статистику FFI

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Andrey
2026-08-31 20:46:52 +03:00
parent 7910a07f2f
commit 0f77a510e6
1 changed files with 38 additions and 0 deletions
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38
python/protocan/native.py
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@@ -82,6 +82,12 @@ class NativeCore:
ctypes.c_uint8, ctypes.c_uint8, ctypes.c_uint16,
]
lib.pcan_abi_id_pack.restype = ctypes.c_uint32
lib.pcan_abi_id_unpack.argtypes = [
ctypes.c_uint32,
ctypes.POINTER(ctypes.c_uint8), ctypes.POINTER(ctypes.c_uint8),
ctypes.POINTER(ctypes.c_uint8), ctypes.POINTER(ctypes.c_uint8),
ctypes.POINTER(ctypes.c_uint8), ctypes.POINTER(ctypes.c_uint16),
]
lib.pcan_abi_crc16.argtypes = [ctypes.c_void_p, ctypes.c_size_t]
lib.pcan_abi_crc16.restype = ctypes.c_uint16
lib.pcan_abi_frame_encode.argtypes = [
@@ -96,12 +102,32 @@ class NativeCore:
ctypes.c_void_p, ctypes.c_uint8, ctypes.POINTER(_AbiFrame),
]
lib.pcan_abi_parser_push.restype = ctypes.c_int
lib.pcan_abi_parser_stats.argtypes = [
ctypes.c_void_p,
ctypes.POINTER(ctypes.c_uint32), ctypes.POINTER(ctypes.c_uint32),
ctypes.POINTER(ctypes.c_uint32), ctypes.POINTER(ctypes.c_uint32),
]
lib.pcan_abi_parser_stats.restype = ctypes.c_int
def id_pack(self, priority: int, route: int, device_type: int,
device_id: int, message_type: int, body: int) -> int:
return int(self.lib.pcan_abi_id_pack(
priority, route, device_type, device_id, message_type, body))
def id_unpack(self, raw: int) -> tuple[int, int, int, int, int, int]:
priority = ctypes.c_uint8()
route = ctypes.c_uint8()
device_type = ctypes.c_uint8()
device_id = ctypes.c_uint8()
message_type = ctypes.c_uint8()
body = ctypes.c_uint16()
self.lib.pcan_abi_id_unpack(
raw, ctypes.byref(priority), ctypes.byref(route),
ctypes.byref(device_type), ctypes.byref(device_id),
ctypes.byref(message_type), ctypes.byref(body))
return (priority.value, route.value, device_type.value,
device_id.value, message_type.value, body.value)
def crc16(self, data: bytes) -> int:
source = (ctypes.c_uint8 * len(data)).from_buffer_copy(data) if data else None
return int(self.lib.pcan_abi_crc16(source, len(data)))
@@ -143,6 +169,18 @@ class NativeParser:
bytes(raw.data[:raw.dlc])))
return frames
def stats(self) -> dict[str, int]:
values = [ctypes.c_uint32() for _ in range(4)]
if not self._core.lib.pcan_abi_parser_stats(
self._storage, *(ctypes.byref(value) for value in values)):
raise NativeCoreUnavailable("SETCore parser stats unavailable")
return {
"frames": values[0].value,
"crc_errors": values[1].value,
"bad_len": values[2].value,
"stray_bytes": values[3].value,
}
_default_core: NativeCore | None = None